7 1. Which of the following is not a mixture?A jar filled with rocks and sandSea waterA cup of lemon teaSodium Chloride2. Which anthropogenic pollutants (originating from human activities) are implicated in theformation of most acidic precipitation?A)CFCSphosphoric acid and hydrochloric acidozone and carbon monoxidenitrogen oxides and sulfur oxides3. Which substance has the highest pH?orange juicefaina sulfuric acid solutionhousehold detergent4. Calculate the number of molecules of oxygen present in 0.125 moles of Oz. (1 mole -6.022 x 10 objects). Show all your working clearly.3.01 x 104 molecules7.53 x 10 molecules0.125 molecules6.022 x 10 moleculesA)B)的9m

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1. Which of the following is not a mixture? A jar filled with rocks and sand Sea water A cup of lemon tea Sodium Chloride

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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estion 15 of 41 A liquid solvent is added to a flask containing an insoluble solid. The total volume of the solid and liquid together is 75.0 mL. The liquid solvent has a mass of 40.5 g and a density of 0.865 g/mL. Determine the mass of the solid given its density is 2.25 g/mL. mass: 1037 10
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Potentially Useful Information Spectrochemical Series: | < Br < SCN¯ < Cl° < NO3¯ < F° < OH° < C2O4²¯ ~ H2O < NCS° < NH3 < en < PPH3 く A student has three test tubes containing a metal (M) nitrate solution M(NO3)2 (aq) (where "M" represents a generic transition metal). The student adds aqueous ammonia (NH3) to one test tube, aqueous hydrochloric acid (HCI) to the second tube, and nothing more to the third tube, but forgets to label the tubes. After this, one test tube contains a red solution, one an orange solution, and one a yellow solution. Note: This metal, M, would follow the same rules that we used for Cu(II), Ni(II), and Co(II). The Jahn-Teller Effect does not apply. Complete each statement or answer each question below about the solutions in the three test tubes. The aqua complex causes less splitting of the d orbitals of the metal than the... ammonia complex. O chloro complex.
The answer was provided as 9.89.
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Sulfur dioxide gas has many medicinal uses. True False
9 4 12 19.4Ве + 2Hе — 6С+ le 2 1H 1 On 1H
You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 34.9 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample? -don't prematureley round